1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb18dcc2b331adc3f4dcaa4b89a2783086b12e2c8bb046717d562b4bed4d6b3f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f7505cd-63fb-416e-ba16-9a8b066a9f8d.json and https://artists.proofprofile.net/proofs/artist/0f7505cd-63fb-416e-ba16-9a8b066a9f8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7ca0944df8f30cbd6f22988165e699dab55f90971608d0507033ed3392c84f. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792100520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f833754e160f24c3c6ee0c16767e05f3f60f3265324eb0fa2cc691d372d5f8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792300664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424aab23711ab877ec5054c20827f341c458e48f43d1ecba901cc258f418a17d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792300564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a6166b7fd0ee8a7a121ea6a0afab888f16a7d4cfcac7a5255fb94a76fd4a14. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792300252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd4a4eb4144f0691acab2eafae99a53e59a99afbbd471c5560cfe4834cb0c76. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792300601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8a799f175e8a35a5c94aa96b6a702e06c5495a37bbc5b55e27c852f431723a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792100641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4675bdd51922d3029a29a1a0b17d5c3155838f2e90ad60d5d27fcce213db21ea. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792300535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078dcb7da2049dadfb644885493ac525976808d44aa6d5f4b401c4e33e398dc4. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792300212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024034c652b103130570e7c39e826d5dae620fba86d03fc1fdea2146aefa297b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1898b94aec4829e9d2d02e80993634fbc43f3795f41603070639bd207ec588f8. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792300651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024034c652b103130570e7c39e826d5dae620fba86d03fc1fdea2146aefa297b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2b87764c35b0166df831759857117188e5840687f29911d135d43ab5cb67cc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792200193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33e86ddde2c2c074922168b0a8c691dbd5d8e3dd18022730fbc0d045cd6351f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792300095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd4a4eb4144f0691acab2eafae99a53e59a99afbbd471c5560cfe4834cb0c76. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792300601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7963400c46fb6fdc1588334b61a434953a2a723b298c1ca1944e5d9390273b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792200367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2b87764c35b0166df831759857117188e5840687f29911d135d43ab5cb67cc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792200193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a6166b7fd0ee8a7a121ea6a0afab888f16a7d4cfcac7a5255fb94a76fd4a14. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792300252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d32c04880874bcfa865a9fa7e8e67bf123e8bbb13cc887bfce114547b23933. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792200145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581c9d6c990a36abc3d4a2f4bef7fa2da15abd0445acbcd19ef8681168d0c9a6. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INA792300183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15e0eeb7407759638b8e67682c5eee3c4ccc609abc6daf382702376b5f43c2d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INK822401331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b72e17a33529dcff6a0c396df55d6e4aff4838629449a1472ae4551e7e1a5e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA092442868.
Char Panch Bhaibandh Bhega Maline - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13341e1efac2fa4baf3d8cda3d489ac9872bc5909b0de701a20b222b5eb6b4e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS182401369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521af9cd5ac254204a9a8ad159cd645ddd8c5ccf243f572ee8124728ea980f42. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INM402401037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e463f39a59426cc802b5876633e73464cebc9fd1883e527e098b6c10573a8e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INZ031414864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c7e5e3767bb96386fd3b0c6b17bf9e1f557387b3039a4e13350ac64ac8d270. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202447319.